Hi
When an instance of query tool and debugger is opened, it fails to load and
gives following error in console:
`Promise is undefined.`
The reason is: These instances are loaded in an iframe and their bundles
don't include `babel-polyfill` library. Babel-polyfill must be loaded first.
Please find attached patch and review it. Thanks to Khushboo for reporting
it.
Thanks,
Surinder